> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/ibm-editran-v5.3-iseries-en/administracion-y-operacion/appendix-b.-cryptography-system-in-onesait-editran/cryptographic-system-parameterization.md).
# Cryptographic system parameterization
The configuration is shown in case cryptography based on keys exchanged externally to Editran is used. The labels or tags are provided by a Key Interface or are referenced directly in the session Profile. The authentication algorithm can be DES or RSA.
* With this parameterization, data are encrypted in batch load (Batch) with Exchange Keys obtained externally to Editran and with the DES encryption algorithm (or Triple DES), the parameters to be encoded would be as follows:
\[1] For unmodified sessions, DES/TD2C/TD3C is allowed. For new sessions and modified sessions, only TD3C is allowed
* With this parameterization, data are encrypted in batch load (Batch) with RSA Keys, provided by the Editran interface, and with the DES encryption algorithm, the parameters to be encoded would be as follows:
\[1]For unmodified sessions, DES/TD2C/TD3C is allowed. For new sessions and modified sessions, only TD3C is allowed
* With this parameterization, data are encrypted in batch load (Batch) with the AES encryption algorithm and RSA keys, provided by the Editran interface, the parameters to be encoded would be as follows:
Table of Cryptography Types (T-Cif):
The cryptographic options must be the same at both ends
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